bind: Use calloc instead of malloc

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

src/bind.c

@@ -132,11 +132,10 @@ static socket_t bind_socket(ssh_bind sshbind, const char *hostname,
 ssh_bind ssh_bind_new(void) {
   ssh_bind ptr;
 
-  ptr = malloc(sizeof(struct ssh_bind_struct));
+  ptr = calloc(1, sizeof(struct ssh_bind_struct));
   if (ptr == NULL) {
     return NULL;
   }
-  ZERO_STRUCTP(ptr);
   ptr->bindfd = SSH_INVALID_SOCKET;
   ptr->bindport= 22;
   ptr->common.log_verbosity = 0;